Home / 9,148.38-12,576.29-7,867.57

Finding the Fourth Proportional to 9,148.38, 12,576.29 and 7,867.57

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Solution

The fourth proportional to 9,148.38, 12,576.29 and 7,867.57 is: 10,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.38 : 12,576.29 = 7,867.57 : x
  2. Step 2: Convert to fraction form
    9,148.38/12,576.29 = 7,867.57/x
  3. Step 3: Cross multiply
    9,148.38x = 12,576.29 × 7,867.57
  4. Step 4: Simplify right side
    9,148.38x = 98,944,830.14
  5. Step 5: Solve for x
    x = 98,944,830.14/9,148.38
  6. Step 6: Final answer
    x = 10,815.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.